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	Add kernel tag that introduced the patch on backport patch. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
		
			
				
	
	
		
			121 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			121 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
From c126f118b330ccf0db0dda4a4bd6c729865a205f Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Mon, 22 Nov 2021 16:23:45 +0100
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Subject: net: dsa: qca8k: add additional MIB counter and make it dynamic
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We are currently missing 2 additionals MIB counter present in QCA833x
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switch.
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QC832x switch have 39 MIB counter and QCA833X have 41 MIB counter.
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Add the additional MIB counter and rework the MIB function to print the
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correct supported counter from the match_data struct.
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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 drivers/net/dsa/qca8k.c | 23 ++++++++++++++++++++---
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 drivers/net/dsa/qca8k.h |  4 ++++
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 2 files changed, 24 insertions(+), 3 deletions(-)
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--- a/drivers/net/dsa/qca8k.c
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+++ b/drivers/net/dsa/qca8k.c
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@@ -70,6 +70,8 @@ static const struct qca8k_mib_desc ar832
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 	MIB_DESC(1, 0x9c, "TxExcDefer"),
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 	MIB_DESC(1, 0xa0, "TxDefer"),
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 	MIB_DESC(1, 0xa4, "TxLateCol"),
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+	MIB_DESC(1, 0xa8, "RXUnicast"),
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+	MIB_DESC(1, 0xac, "TXUnicast"),
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 };
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 /* The 32bit switch registers are accessed indirectly. To achieve this we need
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@@ -1605,12 +1607,16 @@ qca8k_phylink_mac_link_up(struct dsa_swi
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 static void
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 qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data)
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 {
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+	const struct qca8k_match_data *match_data;
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+	struct qca8k_priv *priv = ds->priv;
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 	int i;
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 	if (stringset != ETH_SS_STATS)
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 		return;
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-	for (i = 0; i < ARRAY_SIZE(ar8327_mib); i++)
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+	match_data = of_device_get_match_data(priv->dev);
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+
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+	for (i = 0; i < match_data->mib_count; i++)
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 		strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
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 			ETH_GSTRING_LEN);
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 }
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@@ -1620,12 +1626,15 @@ qca8k_get_ethtool_stats(struct dsa_switc
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 			uint64_t *data)
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 {
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 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
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+	const struct qca8k_match_data *match_data;
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 	const struct qca8k_mib_desc *mib;
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 	u32 reg, i, val;
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 	u32 hi = 0;
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 	int ret;
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-	for (i = 0; i < ARRAY_SIZE(ar8327_mib); i++) {
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+	match_data = of_device_get_match_data(priv->dev);
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+
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+	for (i = 0; i < match_data->mib_count; i++) {
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 		mib = &ar8327_mib[i];
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 		reg = QCA8K_PORT_MIB_COUNTER(port) + mib->offset;
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@@ -1648,10 +1657,15 @@ qca8k_get_ethtool_stats(struct dsa_switc
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 static int
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 qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
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 {
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+	const struct qca8k_match_data *match_data;
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+	struct qca8k_priv *priv = ds->priv;
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+
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 	if (sset != ETH_SS_STATS)
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 		return 0;
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-	return ARRAY_SIZE(ar8327_mib);
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+	match_data = of_device_get_match_data(priv->dev);
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+
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+	return match_data->mib_count;
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 }
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 static int
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@@ -2173,14 +2187,17 @@ static SIMPLE_DEV_PM_OPS(qca8k_pm_ops,
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 static const struct qca8k_match_data qca8327 = {
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 	.id = QCA8K_ID_QCA8327,
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 	.reduced_package = true,
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+	.mib_count = QCA8K_QCA832X_MIB_COUNT,
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 };
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 static const struct qca8k_match_data qca8328 = {
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 	.id = QCA8K_ID_QCA8327,
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+	.mib_count = QCA8K_QCA832X_MIB_COUNT,
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 };
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 static const struct qca8k_match_data qca833x = {
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 	.id = QCA8K_ID_QCA8337,
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+	.mib_count = QCA8K_QCA833X_MIB_COUNT,
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 };
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 static const struct of_device_id qca8k_of_match[] = {
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--- a/drivers/net/dsa/qca8k.h
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+++ b/drivers/net/dsa/qca8k.h
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@@ -21,6 +21,9 @@
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 #define PHY_ID_QCA8337					0x004dd036
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 #define QCA8K_ID_QCA8337				0x13
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+#define QCA8K_QCA832X_MIB_COUNT				39
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+#define QCA8K_QCA833X_MIB_COUNT				41
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+
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 #define QCA8K_BUSY_WAIT_TIMEOUT				2000
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 #define QCA8K_NUM_FDB_RECORDS				2048
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@@ -279,6 +282,7 @@ struct ar8xxx_port_status {
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 struct qca8k_match_data {
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 	u8 id;
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 	bool reduced_package;
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+	u8 mib_count;
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 };
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 enum {
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